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HDR / Evidence and legal work / Staff conduct and exit investigations

Hull and East Riding employers · evidence from work devices

Workplace investigations, Hull. Files leave quietly; the machine writes it down.

A laptop handed back in good order is worth a second look. Windows keeps records of its own, and so do the sync clients; a tidy-up does not reach them. An inbox rule pushing copies to a private address. A memory stick plugged in at 22:40 on a Friday. A Downloads folder emptied on the morning of the exit meeting. We take the machine out of use, image it to evidential standard, and write up what it shows for HR and your solicitor.

Reports in the form CPR Part 35 requires Each handover logged Neutral and discreet

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What the disk kept a note of.

What Windows logs about USBEvery memory stick and portable disk plugged into a Windows machine is logged — serial number as well, and the hours it sat there. One appearing for the first time at 02:00 on a Sunday, days before a resignation, needs explaining.
Cloud storage and webmailTraces stay on the machine whatever the service — OneDrive, Dropbox, Google Drive, webmail in a browser. Sync databases, cached tokens, browser history, uploads that stopped halfway. Logging out and clearing up afterwards removes almost none of it.
Wiping tools and bulk deletionGetting rid of evidence usually makes more of it. You are left with the tool's name, a record of when it ran, and — the bit that generally settles matters — whatever it could not reach.
Sequence is the evidenceOn its own each of these has an innocent explanation ready and waiting. Set them against the clock — files gathered, stick inserted, upload finished, wiper run — and it stops looking like coincidence.

Settle the legal basis first.

Not one of these? Ring us →
What is in playWhat it puts on youHow we work within it
Data Protection Act 2018 and UK GDPROwning the device gives you no lawful basis on its own. Choose one — usually legitimate interests — then run the balancing test and record it before work startsWe scope the examination to the allegation we were given, and stop there
ICO guidance on monitoring workers, October 2023Transparency is the default, and a DPIA where the risk is highYour policies get read before the disk does, and we say plainly when a DPIA is needed
Covert examinationJustifiable in rare cases only — a suspicion of crime, or serious misconduct — and no step taken until senior management has signed it offNo imaging and no reading until that sign-off is in writing
The ACAS standardA disciplinary decision has to rest on a fair, proportionate enquiryThe findings are reported as they stand, whoever they happen to help
Weight at tribunalEvidence is only as good as the method that produced itA chain-of-custody log that strengthens the case rather than handing the other side an opening
Sending it to us: insured, tracked post to the intake lab; the way home is paid at our end. Ring before it goes if you would rather someone checked the packing with you first. It is all written down on the sending page.

The stages, one by one.

The casebook in full →
01

First a confidential call, then a price in writing Free

It begins with a conversation in confidence, and there is no charge for it. Three answers shape the rest: what happened, how far it reaches — the machines, the accounts — and what the evidence has to prove. Between them they fix the scope. The scope fixes the one written price, and you have that before any device is touched.

Held in confidenceOne price, put in writingWhat has to be established
02

Take the machine out of use

Most evidence disappears inside a fortnight, and hardly ever deliberately. IT rebuilds the laptop ready for a new starter. The drive ends up in the spares cupboard. A manager has a quick look for himself. An early write-blocked image beats all three to it.

Imaged at the startBefore anyone else gets it
03

Trace how it left

From then on the copy does the work and the original is left alone. Every removable drive is listed, with when it was plugged in and for how long. So is anything uploaded to a private cloud account or sent as a webmail attachment, anything deleted, and any sign a wiping tool has run. One timeline carries the lot.

Every route out examinedDeletions given a timestamp
04

Put it in writing

The report is written to be read by a solicitor, an HR panel or a tribunal, not by an engineer. It measures what we did against the ICO's guidance on monitoring workers, and against the fair enquiry ACAS expects. If the matter later goes to the police, the document stands as it is.

Written for the tribunal bundleWithin ICO and ACAS bounds
05

Exhibits, logs and every hash

A report nobody can test is worth little. So the bundle carries the working with it: every exhibit, the images it was read from, a log of each handover, the hash of everything, and what was written down at the time. The other side's expert can repeat it and land where we did.

Conclusions, with exhibitsHashes on file, movements loggedOpen to being checked

What we see on the bench

  • Ordinary IT work wrecks more cases than any deliberate cover-up — reissue the machine to the next starter and the evidence leaves with the old build.
  • The findings are not open to editing — a tribunal knows a report an employer has leaned on, and at that point you have paid for nothing. What we wrote is what you get.
  • The percentages in the trade press are soft — counts of how many people take files on the way out sit anywhere from a third upwards, and who paid for the research usually decides where. The behaviour is real. The decimal points are marketing.
  • A device the employee owns is a different question — we would need consent or firm legal ground to touch it, and that gets settled on the first call rather than midway through the work.

The one number we will quote: a 2013 Symantec study with the Ponemon Institute found that roughly half of those who had recently changed employer admitted keeping confidential material from the old job. Most of what has appeared since comes from firms with something to sell, and the figures do not agree with one another. Our own experience is duller than any of it — an employer who comes to us naming what they believe was taken, rather than uneasy in general, is usually proved right by the artefacts.

One case from the casebook.

HU · HUL-2026-0539LOGGED ✓

Files went out twenty days before the resignation

A Bridlington employer brought in a rival's pitch deck and not much else. The timing decided it: the last upload ran twenty days before the resignation letter. On the company's own laptop, the files were pulled together into a single folder, then a personal cloud account was opened and the upload followed — in that order. The matter closed on undertakings.

Closed with undertakingsTimeline written up in 7 days

Before you box it up.

Do these first

  • Shut it down, then lock it in a drawer
  • Keep the email and cloud accounts running — closing them takes evidence with them
  • Check what the acceptable-use policy actually told them
  • Nothing covert without written authority from senior management

What not to do

  • Reissuing the machine to someone else
  • Having a look through the folders yourself
  • Speaking to the employee before the machine is secured
  • Covert monitoring with no written justification

What we get asked on the phone.

The company owns the laptop. Can we search it?

Owning it decides almost nothing. There has to be a lawful basis, and staff must already have been told that work devices get checked — an acceptable-use policy is what does that job. Where nobody was told, expect the point to be fought. Silent searches are kept back for suspected crime, and a director has to authorise one.

Can we watch someone without telling them?

Almost never, and not as routine practice. The ICO's 2023 guidance on monitoring workers reserves it for exceptional circumstances such as suspected crime or gross misconduct. Even then it expects senior management to authorise it, a DPIA, a narrow scope, and the reasoning written down.

A leaver may have copied files. What first?

Preserve, before anything else happens. Power the machine off, lock it away, and leave the mailbox and cloud accounts running rather than disabling them. Nobody opens a folder until a forensic copy exists. An honest look round the disk rewrites the timestamps that would have shown what left.

What will a tribunal make of all this?

How you got there counts for as much as what you found. A damaging finding stops being damaging once the route to it can be picked apart. A screenshot is worth something only where a lawful basis stood behind it, the search stayed within the suspicion that prompted it, and the handling was logged throughout.

Captured quietly now, not disputed later.

A workplace device imaged early and handled properly is far harder to argue with than one examined in a hurry once notice is out. Log a job. The first look costs nothing, and what you tell us stays private.

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